GeoEye-1 Ctr3
Carter Stress Index 3 for GeoEye-1
Vegetation Satellite Provider: MAXAR
Applications
Plant stress detection
Early disease detection
Drought stress monitoring
Vegetation health assessment
Forest decline monitoring
Quick Stats
Category: vegetation
Sensor: GeoEye-1
Provider: MAXAR
Bands Used: 2
Description
A vegetation stress index that uses the ratio of reflectance at 605nm to 760nm. This index is sensitive to plant stress conditions and can detect early signs of vegetation health decline.
Formulas
General Formula
GeoEye-1 Specific Formula
R_605 / NIR_760Spectral Band Visualization
Band Wavelengths
orange: 605
nir: 760
Code Examples
ctr3.py
References
Carter (1994). Ratios of leaf reflectances in narrow wavebands as indicators of plant stress.
le Maire et al. (2004). Towards universal broad leaf chlorophyll indices using PROSPECT simulated database and hyperspectral reflectance measurements.
Main et al. (2011). An investigation into robust spectral indices for leaf chlorophyll estimation.